Fix of the bug IPAL21687 - TC5.1.4: it's impossible to show correcly the copied Local...

diff --git a/src/SOCC/SOCC_ViewModel.cxx b/src/SOCC/SOCC_ViewModel.cxx
index 53a78938d3d6da34dfd74148b9ebfba4114c4f0d..260bed36e5692ef21b8d2a56c520b18d6fd0c7b7 100755 (executable)
--- a/src/SOCC/SOCC_ViewModel.cxx
+++ b/src/SOCC/SOCC_ViewModel.cxx
@@ -59,6 +59,8 @@
 
 #include <AIS_TypeOfIso.hxx>
 
+#include <Precision.hxx>
+
 // in order NOT TO link with SalomeApp, here the code returns SALOMEDS_Study.
 // SalomeApp_Study::studyDS() does it as well, but -- here it is retrieved from 
 // SALOMEDS::StudyManager - no linkage with SalomeApp. 
@@ -674,6 +676,12 @@ bool SOCC_Viewer::getTrihedronSize( double& theNewSize, double& theSize )
   if ( aMaxSide < Ymax -Ymin ) aMaxSide = Ymax -Ymin;
   if ( aMaxSide < Zmax -Zmin ) aMaxSide = Zmax -Zmin;
 
+  // IPAL21687
+  // The boundary box of the view may be initialized but nullified
+  // (case of infinite objects)
+  if ( aMaxSide < Precision::Confusion() )
+    return false;
+
   float aSizeInPercents = SUIT_Session::session()->resourceMgr()->doubleValue("Viewer","TrihedronSize", 105.);
 
   static float EPS = 5.0E-3;